Examples of harmonics-related malfunctions in electrical installations : case of “High harmonic distortion loads”
High voltage distortion at Courchevel ski resort
Posts Tagged ‘electrical installation’
electrical installation harmonic problems part 4
September 28th, 2009 | 2 Comments | Posted in Power qualityTags: electrical installation, harmonic problems
electrical installation harmonic problems part 3
September 21st, 2009 | Make a comment | Posted in Power qualityTags: electrical installation, harmonic problems
Examples of harmonics-related malfunctions in electrical installations : case of “Overloads on transformers or generators”
huge losts: 20,000 euros an hour ... 17 million euros ...
electrical installation harmonic problems part 2
September 14th, 2009 | 4 Comments | Posted in Power qualityTags: electrical installation, harmonic problems
Examples of harmonics-related malfunctions in electrical installations : case of “Overloads in neutral conductors”
Paris headquaters Groupama discovered what Harmonics are !
Electrical Safety in Medium Voltage
September 7th, 2009 | 7 Comments | Posted in Electrical distribution, SafetyTags: disconnector, electrical installation, electrical safety, electrical specification, medium voltage
Medium Voltage disconnector s in electrical installation s are not safety devices !
MV switch disconnector
electrical installation harmonic problems part 1
August 24th, 2009 | 5 Comments | Posted in Power qualityTags: electrical installation, harmonic problems, power factor correction
Examples of harmonics-related malfunctions in electrical installations : case of “Overloads of power factor correction capacitors”
- United Parcel Service, Louisville, Kentucky airport: several capacitor banks had to be replaced in 2007
LV surge protection installation
July 20th, 2009 | 9 Comments | Posted in Electrical distributionTags: electrical installation, lightning, lightning protection, surge protection, surge protector
It’s Good to have in mind practical aspects: case of a low voltage switchboard To achieve the effective installation of the surge protection, the surge arrester’s connections to the grid should be as short as possible. Any cable crossed by a lightning impulse current has a significant voltage to be added to the Surge Protection Device (SPD) residual voltage.
nice picture from http://www.lafoudre.com/
Power losses reduction in electrical distribution
June 29th, 2009 | 29 Comments | Posted in Electrical distribution, Electrical softwareTags: electrical installation, Electrical software, power losses
Reducing power losses by optimizing equipment locations
Do you realize that power losses in a electrical installation could represent up to 7 % of the electrical consumption ?
LV cables and transformers are the most contributors to these operating losses, around 95 % as shown here below
LV: Coordination between 2 Surge protection devices (SPD)
June 18th, 2009 | 10 Comments | Posted in Electrical distributionTags: electrical installation, lightning, lightning protection, surge protection, surge protector
Lightning & Surge protection: Advice to ensure a guaranteed lightning protection for a low voltage electrical installation
New design software for electrical installation
June 1st, 2009 | 12 Comments | Posted in Electrical softwareTags: design software, electrical installation, Electrical software
I have found a new electrical software on Internet: Simaris Design Basic. It is a software for electrical installation calculation: short-circuit calculations, cables sizing and protection devices choice and settings. This is a new version. I knew the old version of this software – 1.5, which is not available any more.
Software for electrical installation
April 23rd, 2009 | 70 Comments | Posted in Electrical softwareTags: electrical engineering, electrical installation, power factor, voltage drop
I find the existing software for the calculation of Electrical Installation difficult and long to use. Sometimes, I need to make a simple calculation or verification and I do not need to create a complete network to do it
Recently I have discovered some small calculators, some of them are too much simplified, but I find the idea good. There is for example… (more…)
